[clang] [Clang] Support MSPropertyRefExpr as placement arg to new-expression (PR #75883)

[via cfe-commits]

Sirraide wrote:

> I'll commit it when I see the CI done, and can do the release notes conflict. I wont bother re-running after conflict resolution.

Alright, thanks!

https://github.com/llvm/llvm-project/pull/75883